Method of incorporating lubricant



Nav. 24, 1936.

JZ i

W., D. HODSON METHOD OF INCORPORATING LUBRICANTv Filed March 27,' 193e 2 Sheets-Sheet 1 NOV. 24, 1936. W, D, HODSQN 2,062,061

METHOD OF INCORPORATING LUBRICANT VFiled March 27, 1936 2 Sheets-Sheet 2 Patented Nov. 24, 1936 UNITED STATES PATENT OFFICE METHOD 0F INCORPORATING LUBRICANT i Walter D. Hodson, Beverly Hills, Ill.

Application March 27, 1936, Serial No. 71,305

4 Claims. (Cl. 117-345) This invention relates to a method of incorporating fluids in cordage.

January 21, 1936. In carrying out such a method, there is still some diculty in preventing the throwing off of lubricant in the spool box which rotates 1500 to 1600 times per minute. In my co-pending application Serial No. 53,248, led December 6, 1935, is suggested one method for eliminating this throwing off, in which the lubricant is fed into the yarn or thread in a tube of fibrous material.

It has now been discovered that lubricant may be incorporated within the yarn and passed through the die, after which a ribbon may be wrapped about theyarn before it enters the spool box.

This invention is also applicable to the incorporation of light oils and fluids in cordage for other than lubricating purposes. For example, it is frequently desirable to apply lubricants for preserving purposes either against insect or bacterial action. This is frequently done in connection with such cordage, as binder twine, and marine cordage. The invention is applicable not only to vegetable cordage but may be applied to wire material. The term fibrous has been used herein to cover not only vegetable bers, but to cover the individual Wires in a wire rope strand. Likewise the term cordage has been used in the claims herein to include wire ropes..l

The invention is illustrated in drawings, in which- Fig. l is an elevation partly in section and partly broken away illustrating a spinning assembly; Fig. 2 is a plan view broken away showing the ribbon feeding mechanism; Fig. 3 is an elevation as viewed along the line 3 in Fig. 2; and Figs. 4 and 5 are detailed views illustrating various methods of winding the ribbon. Fig. 6 illustrates the spool box of which an end is shown broken away in Figs. 1 and 2.

As illustrated in Fig. 1, I illustrates a group of bers which are drawn together within the die 2 and formed into a thread or yarn 3 which is drawn into the spool box 4. Just before the thread enters the spool box it contacts a ribbon of fabric material, for instance, paper or cloth 5,

Ahaving approximately melt point and a penewhich is wrapped about the thread by its rotational movement. A paper feeding device 6 is illustrated which may be of any conventional form. v

The spool box, which is ofthe conventional 5 form, comprises a drive shaft I0 which drives the frame II through a plurality of gears I2. Normally, the frame II will rotate at a speed of as much asV 1600 revolutions per minute. Within the frame is mounted a spool I3 upon the spindle 10 I4. The thread enters the apparatus through the opening I5 and is passed out upon the tenn sioning mechanism I6 and up to the pulley I'I carried by the bar I8 of the frame. The channel member I9 encloses the pulley and slides it back 15 and forth along the bar in order to distribute the yarn equally upon the spool. A friction drive mechanism 20 is provided for the spool in order to accommodate for the increase in diameter thereof during winding. 20

As is obvious, the yarn upon the frame is subjected to tremendous centrifugal force, by which there is an enormous tendency to throw off any iluid or plastic material upon' it.

The ribbon feeding mechanism is mounted on a bracket 1 pivotally mounted on the bolt 8 so that the angle of the ribbon may be changed. The bolt 6 is movable in the slot 9 in the support I0. As a result of this two-fold movement, the ribbon feeding device 6 may be positioned to feed 30 the ribbon at a large variation of angles and thereby at any given rotational and forward speed of the yarn 3 may be made to wrap ribbon about it in various degrees of tightness and with various amounts of overlapping. Figs. 4 and 5 illus- 35 Y trate two different angles and illustrate the effect of such angles on the overlap. An adjustable tensioning device I2 is preferably mounted on the feeding mechanism 6.

A lubricant or fluid feeding device II is adapt- 40 ed to feed the lubricant into the center of the yarn prior to its entry into the die.

The fabric employed maybe absorbent material such as paper, which will be gradually or rapidly disintegrated by the absorption of lubricant, or it may be a fabric which will maintain its integrity indefinitely and will assist in preventing wear of the yarn material.

.A preferred grease. may be prepared from a viscous mineral oil, an aluminum soap, and an asphaltic or blown oilI For example, a suitable grease may be prepared of 39 parts of a heavy oil of -210 viscosity at 200 F., one part of aluminum oleate, and 50 parts of a blown oil tration in the order of ,200 at '77 F. The brous base is incorporated in the lubricant in proportions depending upon the absorbing qualities of the base. A well ground, good quality asbestos may be used in the proportions of 10 parts asbestos to 90 parts of grease, but normally, as set forth in my co-pending application, Serial No. 744,061, led September 12,` 1934, it is preferred to use mixtures'of finely ground and coarsely ground asbestos in which generally about 25.

parts of total asbestos is used for 75 yparts of lubricant. l

'Ihe foregoing detailed description has been given for elearness of understanding only and no unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible, in view of the prior art.

I claim:

1. In the incorporation of uds into cordage yarn wherein rope fibers are introduced into a forming die and the fibers are treated with fluid prior to emergence of yarn. from the die and the fluid-treated yarn then passes to a rapidly rotating member upon which the yarn is mounted at a point distant from the center and subjected to great centrifugal action, the step of forming a fabric layer about the yarn between the forming die and the rotating member, whereby throwing off of the fluid therein is prevented.

2. The method as set forth in claim 1 in whic the fabric is paper.

3. In the incorporation of lubricant into cordage yarn wherein rope fibers are introduced into a forming die and the rope fibers are lubricatedV y prior to emergence of yarn from the die and the 

